Who are the Marys in the Bible?

Answer 1

At least six women are called Mary in the New Testament.

1. Mary, mother of Jesus (Luke 1:27)
2. Mary Magdalene (Luke 8:2)
   
3. Mary (sister to Martha and Lazarus) (John 11:1)
4. Mary, wife of Clopas and sister of Jesus' mother (John 19:25)
   
5. Mary, the mother of James the younger and of Joseph (Mark 15:40)
6. Mary, the mother of John, also called Mark (Act 12:12)

Mary was a common name at the time or more appropriately in the Hebrew form as Maryām or Miriam. In Arabic, both the names Mary and Miriam are called Maryam. Miriam was the sister of Moses in the Old Testament so it can be interpreted that Moses' sister would also be called Mary.
The Catholic Encyclopedia concludes that the Salome of Mark 15:40 is probably identical with the mother of the sons of Zebedee (James and John) in Matthew 27:55 and venerated as Saint Mary Salome, but she is not called Mary in the KJV.